【摘要】 基于DFM的设计思想，介绍采用面向对象的方法来表达覆盖件凸凹模型面的特征造型和特征识别技术，提出用作信息匹配的综合知识库的基本构架，初步实现了产品特征信息由CAD向CAPP，CAM正确传递以及设计制造过程中信息双向交换和共享。更多还原

【Abstract】 Based on the design way of DFM, this paper introduces to the feature modeling and feature recognition for the working surface of automobile cover panel dies and puts forward a basic frame of the general knowledge data-base to match various information. Complete transmitting the product feature from CAD to CAPP & CAM has been carried out and exhanging information between design and manufacture becomes possible.更多还原